I have had a series of problems from exhaust manifold leaks from broken block bolts to replace the ECU, had to replace the differential, and the transmission twice now.

happened when pulling out of parking, truck shifting was rough (almost a clunk). Then it would not got past 3rd gear. Check engine light came on. I checked code P0733 (Gear 3 incorrect). Engine of course is at high rpm during 45 mph drive home. Called dealer. They said at least 2 weeks to get in for transmission problems. I told them the vehicle was no longer safe to drive (this has happened before), They said call roadside assistance. Ready to call the district rep.